<?php

require_once("include/bittorrent.php");
dbconn();
loggedinorreturn();
if (get_user_class() != UC_STAFFLEADER) {
	stderr("错误", "权限不足");
}
/*
  +----------------------------------------------------------------------+
  | PHP Version 5                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 1997-2004 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.0 of the PHP license,       |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | http://www.php.net/license/3_0.txt.                                  |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author:  Harun Yayli <harunyayli at gmail.com>                       |
  +----------------------------------------------------------------------+
 */

$VERSION = '$Id: memcache.php,v 1.1.2.3 2008/08/28 18:07:54 mikl Exp $';

define('ADMIN_USERNAME', 'mojie126');  // Admin Username
define('ADMIN_PASSWORD', 'a123456');   // Admin Password
define('DATE_FORMAT', 'Y年m月d日 H:i:s');
define('GRAPH_SIZE', 200);
define('MAX_ITEM_DUMP', 50);
header("Content-type: text/html; charset=utf-8");

$MEMCACHE_SERVERS[] = '127.0.0.1:11211'; // add more as an array
//$MEMCACHE_SERVERS[] = 'mymemcache-server2:11211'; // add more as an array
////////// END OF DEFAULT CONFIG AREA /////////////////////////////////////////////////////////////
///////////////// Password protect ////////////////////////////////////////////////////////////////
if (!isset($_SERVER['PHP_AUTH_USER']) || !isset($_SERVER['PHP_AUTH_PW']) ||
		$_SERVER['PHP_AUTH_USER'] != ADMIN_USERNAME || $_SERVER['PHP_AUTH_PW'] != ADMIN_PASSWORD) {
	header("WWW-Authenticate: Basic realm=\"Memcache Login\"");
	header("HTTP/1.0 401 Unauthorized");

	echo <<<EOB
				<html><body>
				<h1>Rejected!</h1>
				<big>Wrong Username or Password!</big>
				</body></html>
EOB;
	exit;
}

///////////MEMCACHE FUNCTIONS /////////////////////////////////////////////////////////////////////

function sendMemcacheCommands($command) {
	global $MEMCACHE_SERVERS;
	$result = array();

	foreach ($MEMCACHE_SERVERS as $server) {
		$strs = explode(':', $server);
		$host = $strs[0];
		$port = $strs[1];
		$result[$server] = sendMemcacheCommand($host, $port, $command);
	}
	return $result;
}

function sendMemcacheCommand($server, $port, $command) {

	$s = @fsockopen($server, $port);
	if (!$s) {
		die("Cant connect to:" . $server . ':' . $port);
	}

	fwrite($s, $command . "\r\n");

	$buf = '';
	while ((!feof($s))) {
		$buf .= fgets($s, 256);
		if (strpos($buf, "END\r\n") !== false) { // stat says end
			break;
		}
		if (strpos($buf, "DELETED\r\n") !== false || strpos($buf, "NOT_FOUND\r\n") !== false) { // delete says these
			break;
		}
		if (strpos($buf, "OK\r\n") !== false) { // flush_all says ok
			break;
		}
	}
	fclose($s);
	return parseMemcacheResults($buf);
}

function parseMemcacheResults($str) {

	$res = array();
	$lines = explode("\r\n", $str);
	$cnt = count($lines);
	for ($i = 0; $i < $cnt; $i++) {
		$line = $lines[$i];
		$l = explode(' ', $line, 3);
		if (count($l) == 3) {
			$res[$l[0]][$l[1]] = $l[2];
			if ($l[0] == 'VALUE') { // next line is the value
				$res[$l[0]][$l[1]] = array();
				list ($flag, $size) = explode(' ', $l[2]);
				$res[$l[0]][$l[1]]['stat'] = array('flag' => $flag, 'size' => $size);
				$res[$l[0]][$l[1]]['value'] = $lines[++$i];
			}
		} elseif ($line == 'DELETED' || $line == 'NOT_FOUND' || $line == 'OK') {
			return $line;
		}
	}
	return $res;
}

function dumpCacheSlab($server, $slabId, $limit) {
	list($host, $port) = explode(':', $server);
	$resp = sendMemcacheCommand($host, $port, 'stats cachedump ' . $slabId . ' ' . $limit);

	return $resp;
}

function flushServer($server) {
	list($host, $port) = explode(':', $server);
	$resp = sendMemcacheCommand($host, $port, 'flush_all');
	return $resp;
}

function getCacheItems() {
	$items = sendMemcacheCommands('stats items');
	$serverItems = array();
	$totalItems = array();
	foreach ($items as $server => $itemlist) {
		$serverItems[$server] = array();
		$totalItems[$server] = 0;
		if (!isset($itemlist['STAT'])) {
			continue;
		}

		$iteminfo = $itemlist['STAT'];

		foreach ($iteminfo as $keyinfo => $value) {
			if (preg_match('/items\:(\d+?)\:(.+?)$/', $keyinfo, $matches)) {
				$serverItems[$server][$matches[1]][$matches[2]] = $value;
				if ($matches[2] == 'number') {
					$totalItems[$server] +=$value;
				}
			}
		}
	}
	return array('items' => $serverItems, 'counts' => $totalItems);
}

function getMemcacheStats($total = true) {
	$resp = sendMemcacheCommands('stats');
	if ($total) {
		$res = array();
		foreach ($resp as $server => $r) {
			foreach ($r['STAT'] as $key => $row) {
				if (!isset($res[$key])) {
					$res[$key] = null;
				}
				switch ($key) {
					case 'pid':
						$res['pid'][$server] = $row;
						break;
					case 'uptime':
						$res['uptime'][$server] = $row;
						break;
					case 'time':
						$res['time'][$server] = $row;
						break;
					case 'version':
						$res['version'][$server] = $row;
						break;
					case 'pointer_size':
						$res['pointer_size'][$server] = $row;
						break;
					case 'rusage_user':
						$res['rusage_user'][$server] = $row;
						break;
					case 'rusage_system':
						$res['rusage_system'][$server] = $row;
						break;
					case 'curr_items':
						$res['curr_items']+=$row;
						break;
					case 'total_items':
						$res['total_items']+=$row;
						break;
					case 'bytes':
						$res['bytes']+=$row;
						break;
					case 'curr_connections':
						$res['curr_connections']+=$row;
						break;
					case 'total_connections':
						$res['total_connections']+=$row;
						break;
					case 'connection_structures':
						$res['connection_structures']+=$row;
						break;
					case 'cmd_get':
						$res['cmd_get']+=$row;
						break;
					case 'cmd_set':
						$res['cmd_set']+=$row;
						break;
					case 'get_hits':
						$res['get_hits']+=$row;
						break;
					case 'get_misses':
						$res['get_misses']+=$row;
						break;
					case 'evictions':
						$res['evictions']+=$row;
						break;
					case 'bytes_read':
						$res['bytes_read']+=$row;
						break;
					case 'bytes_written':
						$res['bytes_written']+=$row;
						break;
					case 'limit_maxbytes':
						$res['limit_maxbytes']+=$row;
						break;
					case 'threads':
						$res['rusage_system'][$server] = $row;
						break;
				}
			}
		}
		return $res;
	}
	return $resp;
}

//////////////////////////////////////////////////////
//
// don't cache this page
//
header("Cache-Control: no-store, no-cache, must-revalidate");  // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");   // HTTP/1.0

function duration($ts) {
	global $time;
	$years = (int) ((($time - $ts) / (7 * 86400)) / 52.177457);
	$rem = (int) (($time - $ts) - ($years * 52.177457 * 7 * 86400));
	$weeks = (int) (($rem) / (7 * 86400));
	$days = (int) (($rem) / 86400) - $weeks * 7;
	$hours = (int) (($rem) / 3600) - $days * 24 - $weeks * 7 * 24;
	$mins = (int) (($rem) / 60) - $hours * 60 - $days * 24 * 60 - $weeks * 7 * 24 * 60;
	$str = '';
	if ($years == 1)
		$str .= "$years 年, ";
	if ($years > 1)
		$str .= "$years 年, ";
	if ($weeks == 1)
		$str .= "$weeks 周, ";
	if ($weeks > 1)
		$str .= "$weeks 周, ";
	if ($days == 1)
		$str .= "$days 天,";
	if ($days > 1)
		$str .= "$days 天,";
	if ($hours == 1)
		$str .= " $hours 小时 and";
	if ($hours > 1)
		$str .= " $hours 小时 and";
	if ($mins == 1)
		$str .= " 1 分钟";
	else
		$str .= " $mins 分钟";
	return $str;
}

// create graphics
//
function graphics_avail() {
	return extension_loaded('gd');
}

function bsize($s) {
	foreach (array('', 'K', 'M', 'G') as $k) {
		if ($s < 1024)
			break;
		$s/=1024;
	}
	return sprintf("%5.1f %sBytes", $s, $k);
}

// create menu entry
function menu_entry($ob, $title) {
	global $PHP_SELF;
	if ($ob == $_GET['op']) {
		return "<li><a class=\"child_active\" href=\"$PHP_SELF&op=$ob\">$title</a></li>";
	}
	return "<li><a class=\"active\" href=\"$PHP_SELF&op=$ob\">$title</a></li>";
}

function getHeader() {
	global $BASEURL, $SITENAME;
	$header = <<<EOB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head><title>memcache  监控</title>
<style type="text/css"><!--
body { background:white; font-size:100.01%; margin:0; padding:0; }
body,p,td,th,input,submit { font-size:0.8em;font-family:arial,helvetica,sans-serif; }
* html body   {font-size:0.8em}
* html p      {font-size:0.8em}
* html td     {font-size:0.8em}
* html th     {font-size:0.8em}
* html input  {font-size:0.8em}
* html submit {font-size:0.8em}
td { vertical-align:top }
a { color:black; font-weight:none; text-decoration:none; }
a:hover { text-decoration:underline; }
div.content { padding:1em 1em 1em 1em; position:absolute; width:97%; z-index:100; }

h1.memcache { background:rgb(153,153,204); margin:0; padding:0.5em 1em 0.5em 1em; }
* html h1.memcache { margin-bottom:-7px; }
h1.memcache a:hover { text-decoration:none; color:rgb(90,90,90); }
h1.memcache span.logo {
	background:rgb(119,123,180);
	color:black;
	border-right: solid black 1px;
	border-bottom: solid black 1px;
	font-style:italic;
	font-size:1em;
	padding-left:1.2em;
	padding-right:1.2em;
	text-align:right;
	display:block;
	width:130px;
	}
h1.memcache span.logo span.name { color:white; font-size:0.7em; padding:0 0.8em 0 2em; }
h1.memcache span.nameinfo { color:white; display:inline; font-size:0.4em; margin-left: 3em; }
h1.memcache div.copy { color:black; font-size:0.4em; position:absolute; right:1em; }
hr.memcache {
	background:white;
	border-bottom:solid rgb(102,102,153) 1px;
	border-style:none;
	border-top:solid rgb(102,102,153) 10px;
	height:12px;
	margin:0;
	margin-top:1px;
	padding:0;
}

ol,menu { margin:1em 0 0 0; padding:0.2em; margin-left:1em;}
ol.menu li { display:inline; margin-right:0.7em; list-style:none; font-size:85%}
ol.menu a {
	background:rgb(153,153,204);
	border:solid rgb(102,102,153) 2px;
	color:white;
	font-weight:bold;
	margin-right:0em;
	padding:0.1em 0.5em 0.1em 0.5em;
	text-decoration:none;
	margin-left: 5px;
	}
ol.menu a.child_active {
	background:rgb(153,153,204);
	border:solid rgb(102,102,153) 2px;
	color:white;
	font-weight:bold;
	margin-right:0em;
	padding:0.1em 0.5em 0.1em 0.5em;
	text-decoration:none;
	border-left: solid black 5px;
	margin-left: 0px;
	}
ol.menu span.active {
	background:rgb(153,153,204);
	border:solid rgb(102,102,153) 2px;
	color:black;
	font-weight:bold;
	margin-right:0em;
	padding:0.1em 0.5em 0.1em 0.5em;
	text-decoration:none;
	border-left: solid black 5px;
	}
ol.menu span.inactive {
	background:rgb(193,193,244);
	border:solid rgb(182,182,233) 2px;
	color:white;
	font-weight:bold;
	margin-right:0em;
	padding:0.1em 0.5em 0.1em 0.5em;
	text-decoration:none;
	margin-left: 5px;
	}
ol.menu a:hover {
	background:rgb(193,193,244);
	text-decoration:none;
	}


div.info {
	background:rgb(204,204,204);
	border:solid rgb(204,204,204) 1px;
	margin-bottom:1em;
	}
div.info h2 {
	background:rgb(204,204,204);
	color:black;
	font-size:1em;
	margin:0;
	padding:0.1em 1em 0.1em 1em;
	}
div.info table {
	border:solid rgb(204,204,204) 1px;
	border-spacing:0;
	width:100%;
	}
div.info table th {
	background:rgb(204,204,204);
	color:white;
	margin:0;
	padding:0.1em 1em 0.1em 1em;
	}
div.info table th a.sortable { color:black; }
div.info table tr.tr-0 { background:rgb(238,238,238); }
div.info table tr.tr-1 { background:rgb(221,221,221); }
div.info table td { padding:0.3em 1em 0.3em 1em; }
div.info table td.td-0 { border-right:solid rgb(102,102,153) 1px; white-space:nowrap; }
div.info table td.td-n { border-right:solid rgb(102,102,153) 1px; }
div.info table td h3 {
	color:black;
	font-size:1.1em;
	margin-left:-0.3em;
	}
.td-0 a , .td-n a, .tr-0 a , tr-1 a {
    text-decoration:underline;
}
div.graph { margin-bottom:1em }
div.graph h2 { background:rgb(204,204,204);; color:black; font-size:1em; margin:0; padding:0.1em 1em 0.1em 1em; }
div.graph table { border:solid rgb(204,204,204) 1px; color:black; font-weight:normal; width:100%; }
div.graph table td.td-0 { background:rgb(238,238,238); }
div.graph table td.td-1 { background:rgb(221,221,221); }
div.graph table td { padding:0.2em 1em 0.4em 1em; }

div.div1,div.div2 { margin-bottom:1em; width:35em; }
div.div3 { position:absolute; left:40em; top:1em; width:580px; }
//div.div3 { position:absolute; left:37em; top:1em; right:1em; }

div.sorting { margin:1.5em 0em 1.5em 2em }
.center { text-align:center }
.aright { position:absolute;right:1em }
.right { text-align:right }
.ok { color:rgb(0,200,0); font-weight:bold}
.failed { color:rgb(200,0,0); font-weight:bold}

span.box {
	border: black solid 1px;
	border-right:solid black 2px;
	border-bottom:solid black 2px;
	padding:0 0.5em 0 0.5em;
	margin-right:1em;
}
span.green { background:#60F060; padding:0 0.5em 0 0.5em}
span.red { background:#D06030; padding:0 0.5em 0 0.5em }

div.authneeded {
	background:rgb(238,238,238);
	border:solid rgb(204,204,204) 1px;
	color:rgb(200,0,0);
	font-size:1.2em;
	font-weight:bold;
	padding:2em;
	text-align:center;
	}

input {
	background:rgb(153,153,204);
	border:solid rgb(102,102,153) 2px;
	color:white;
	font-weight:bold;
	margin-right:1em;
	padding:0.1em 0.5em 0.1em 0.5em;
	}
//-->
</style>
</head>
<body>
<div class="head">
	<h1 class="memcache">
		<span class="logo"><a href="http://pecl.php.net/package/memcache">memcache</a></span>
		<span class="nameinfo">监控程序作者：<a href="http://livebookmark.net">Harun Yayli</a></span>
		<span class="nameinfo">简体中文支持：<a href="http://www.xnlinux.cn">XNLINUX</a></span>
		<span class="nameinfo">返回{$SITENAME}：<a href="//$BASEURL">$BASEURL</a></span>
	</h1>
	<hr class="memcache">
</div>
<div class=content>
EOB;

	return $header;
}

function getFooter() {
	global $VERSION;
	$footer = '</div><!-- Based on apc.php ' . $VERSION . '--></body>
</html>
';

	return $footer;
}

function getMenu() {
	global $PHP_SELF;
	echo "<ol class=menu>";
	if ($_GET['op'] != 4) {
		echo <<<EOB
    <li><a href="$PHP_SELF&op={$_GET['op']}">刷新数据信息</a></li>
EOB;
	} else {
		echo <<<EOB
    <li><a href="$PHP_SELF&op=2}">Back</a></li>
EOB;
	}
	echo
	menu_entry(1, '显示主机统计信息'),
	menu_entry(2, '显示变量信息');

	echo <<<EOB
	</ol>
	<br/>
EOB;
}

// TODO, AUTH

$_GET['op'] = !isset($_GET['op']) ? '1' : $_GET['op'];
$PHP_SELF = isset($_SERVER['PHP_SELF']) ? htmlentities(strip_tags($_SERVER['PHP_SELF'], '')) : '';

$PHP_SELF = $PHP_SELF . '?';
$time = time();
// sanitize _GET

foreach ($_GET as $key => $g) {
	$_GET[$key] = htmlentities($g);
}


// singleout
// when singleout is set, it only gives details for that server.
if (isset($_GET['singleout']) && $_GET['singleout'] >= 0 && $_GET['singleout'] < count($MEMCACHE_SERVERS)) {
	$MEMCACHE_SERVERS = array($MEMCACHE_SERVERS[$_GET['singleout']]);
}

// display images
if (isset($_GET['IMG'])) {
	$memcacheStats = getMemcacheStats();
	$memcacheStatsSingle = getMemcacheStats(false);

	if (!graphics_avail()) {
		exit(0);
	}

	function fill_box($im, $x, $y, $w, $h, $color1, $color2, $text = '', $placeindex = '') {
		global $col_black;
		$x1 = $x + $w - 1;
		$y1 = $y + $h - 1;

		imagerectangle($im, $x, $y1, $x1 + 1, $y + 1, $col_black);
		if ($y1 > $y)
			imagefilledrectangle($im, $x, $y, $x1, $y1, $color2);
		else
			imagefilledrectangle($im, $x, $y1, $x1, $y, $color2);
		imagerectangle($im, $x, $y1, $x1, $y, $color1);
		if ($text) {
			if ($placeindex > 0) {

				if ($placeindex < 16) {
					$px = 5;
					$py = $placeindex * 12 + 6;
					imagefilledrectangle($im, $px + 90, $py + 3, $px + 90 - 4, $py - 3, $color2);
					imageline($im, $x, $y + $h / 2, $px + 90, $py, $color2);
					imagestring($im, 2, $px, $py - 6, $text, $color1);
				} else {
					if ($placeindex < 31) {
						$px = $x + 40 * 2;
						$py = ($placeindex - 15) * 12 + 6;
					} else {
						$px = $x + 40 * 2 + 100 * intval(($placeindex - 15) / 15);
						$py = ($placeindex % 15) * 12 + 6;
					}
					imagefilledrectangle($im, $px, $py + 3, $px - 4, $py - 3, $color2);
					imageline($im, $x + $w, $y + $h / 2, $px, $py, $color2);
					imagestring($im, 2, $px + 2, $py - 6, $text, $color1);
				}
			} else {
				imagestring($im, 4, $x + 5, $y1 - 16, $text, $color1);
			}
		}
	}

	function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1, $color2, $text = '', $placeindex = 0) {
		$r = $diameter / 2;
		$w = deg2rad((360 + $start + ($end - $start) / 2) % 360);


		if (function_exists("imagefilledarc")) {
			// exists only if GD 2.0.1 is avaliable
			imagefilledarc($im, $centerX + 1, $centerY + 1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE);
			imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE);
			imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL | IMG_ARC_EDGED);
		} else {
			imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2);
			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start + 1)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end - 1)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
			imagefill($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $color2);
		}
		if ($text) {
			if ($placeindex > 0) {
				imageline($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $diameter, $placeindex * 12, $color1);
				imagestring($im, 4, $diameter, $placeindex * 12, $text, $color1);
			} else {
				imagestring($im, 4, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $text, $color1);
			}
		}
	}

	$size = GRAPH_SIZE; // image size
	$image = imagecreate($size + 50, $size + 10);

	$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
	$col_red = imagecolorallocate($image, 0xD0, 0x60, 0x30);
	$col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
	$col_black = imagecolorallocate($image, 0, 0, 0);

	imagecolortransparent($image, $col_white);

	switch ($_GET['IMG']) {
		case 1: // pie chart
			$tsize = $memcacheStats['limit_maxbytes'];
			$avail = $tsize - $memcacheStats['bytes'];
			$x = $y = $size / 2;
			$angle_from = 0;
			$fuzz = 0.000001;

			foreach ($memcacheStatsSingle as $serv => $mcs) {
				$free = $mcs['STAT']['limit_maxbytes'] - $mcs['STAT']['bytes'];
				$used = $mcs['STAT']['bytes'];


				if ($free > 0) {
					// draw free
					$angle_to = ($free * 360) / $tsize;
					$perc = sprintf("%.2f%%", ($free * 100) / $tsize);

					fill_arc($image, $x, $y, $size, $angle_from, $angle_from + $angle_to, $col_black, $col_green, $perc);
					$angle_from = $angle_from + $angle_to;
				}
				if ($used > 0) {
					// draw used
					$angle_to = ($used * 360) / $tsize;
					$perc = sprintf("%.2f%%", ($used * 100) / $tsize);
					fill_arc($image, $x, $y, $size, $angle_from, $angle_from + $angle_to, $col_black, $col_red, '(' . $perc . ')');
					$angle_from = $angle_from + $angle_to;
				}
			}

			break;

		case 2: // hit miss

			$hits = ($memcacheStats['get_hits'] == 0) ? 1 : $memcacheStats['get_hits'];
			$misses = ($memcacheStats['get_misses'] == 0) ? 1 : $memcacheStats['get_misses'];
			$total = $hits + $misses;

			fill_box($image, 30, $size, 50, -$hits * ($size - 21) / $total, $col_black, $col_green, sprintf("%.1f%%", $hits * 100 / $total));
			fill_box($image, 130, $size, 50, -max(4, ($total - $hits) * ($size - 21) / $total), $col_black, $col_red, sprintf("%.1f%%", $misses * 100 / $total));
			break;
	}
	header("Content-type: image/png");
	imagepng($image);
	exit;
}

echo getHeader();
echo getMenu();

switch ($_GET['op']) {

	case 1: // host stats
		$phpversion = phpversion();
		$memcacheStats = getMemcacheStats();
		$memcacheStatsSingle = getMemcacheStats(false);

		$mem_size = $memcacheStats['limit_maxbytes'];
		$mem_used = $memcacheStats['bytes'];
		$mem_avail = $mem_size - $mem_used;
		$startTime = time() - array_sum($memcacheStats['uptime']);

		$curr_items = $memcacheStats['curr_items'];
		$total_items = $memcacheStats['total_items'];
		$hits = ($memcacheStats['get_hits'] == 0) ? 1 : $memcacheStats['get_hits'];
		$misses = ($memcacheStats['get_misses'] == 0) ? 1 : $memcacheStats['get_misses'];
		$sets = $memcacheStats['cmd_set'];

		$req_rate = sprintf("%.2f", ($hits + $misses) / ($time - $startTime));
		$hit_rate = sprintf("%.2f", ($hits) / ($time - $startTime));
		$miss_rate = sprintf("%.2f", ($misses) / ($time - $startTime));
		$set_rate = sprintf("%.2f", ($sets) / ($time - $startTime));

		echo <<< EOB
		<div class="info div1"><h2>常规缓存信息</h2>
		<table cellspacing=0><tbody>
		<tr class=tr-1><td class=td-0>PHP版本</td><td>$phpversion</td></tr>
EOB;
		echo "<tr class=tr-0><td class=td-0>主机" . ((count($MEMCACHE_SERVERS) > 1) ? 's' : '') . "</td><td>";
		$i = 0;
		if (!isset($_GET['singleout']) && count($MEMCACHE_SERVERS) > 1) {
			foreach ($MEMCACHE_SERVERS as $server) {
				echo ($i + 1) . '. <a href="' . $PHP_SELF . '&singleout=' . $i++ . '">' . $server . '</a><br/>';
			}
		} else {
			echo '1.' . $MEMCACHE_SERVERS[0];
		}
		if (isset($_GET['singleout'])) {
			echo '<a href="' . $PHP_SELF . '">(all servers)</a><br/>';
		}
		echo "</td></tr>\n";
		echo "<tr class=tr-1><td class=td-0>缓存大小</td><td>" . bsize($memcacheStats['limit_maxbytes']) . "</td></tr>\n";

		echo <<<EOB
		</tbody></table>
		</div>

		<div class="info div1"><h2>服务器信息</h2>
EOB;
		foreach ($MEMCACHE_SERVERS as $server) {
			echo '<table cellspacing=0><tbody>';
			echo '<tr class=tr-1><td class=td-1>' . $server . '</td><td><a href="' . $PHP_SELF . '&server=' . array_search($server, $MEMCACHE_SERVERS) . '&op=6">[<b>刷新本服务器</b>]</a></td></tr>';
			echo '<tr class=tr-0><td class=td-0>启动时间</td><td>', date(DATE_FORMAT, $memcacheStatsSingle[$server]['STAT']['time'] - $memcacheStatsSingle[$server]['STAT']['uptime']), '</td></tr>';
			echo '<tr class=tr-1><td class=td-0>正常运行时间</td><td>', duration($memcacheStatsSingle[$server]['STAT']['time'] - $memcacheStatsSingle[$server]['STAT']['uptime']), '</td></tr>';
			echo '<tr class=tr-0><td class=td-0>Memcached版本</td><td>' . $memcacheStatsSingle[$server]['STAT']['version'] . '</td></tr>';
			echo '<tr class=tr-1><td class=td-0>已使用缓存</td><td>', bsize($memcacheStatsSingle[$server]['STAT']['bytes']), '</td></tr>';
			echo '<tr class=tr-0><td class=td-0>总缓存量大小</td><td>', bsize($memcacheStatsSingle[$server]['STAT']['limit_maxbytes']), '</td></tr>';
			echo '</tbody></table>';
		}
		echo <<<EOB

		</div>
		<div class="graph div3"><h2><center>主机状态统计图</center></h2>
		<table cellspacing=0><tbody>
EOB;

		$size = 'width=' . (GRAPH_SIZE + 50) . ' height=' . (GRAPH_SIZE + 10);
		echo <<<EOB
		<tr>
		<td class=td-0>缓存使用情况</td>
		<td class=td-1>命中与失误情况</td>
		</tr>
EOB;

		echo
		graphics_avail() ?
				'<tr>' .
				"<td class=td-0><img alt=\"\" $size src=\"$PHP_SELF&IMG=1&" . (isset($_GET['singleout']) ? 'singleout=' . $_GET['singleout'] . '&' : '') . "$time\"></td>" .
				"<td class=td-1><img alt=\"\" $size src=\"$PHP_SELF&IMG=2&" . (isset($_GET['singleout']) ? 'singleout=' . $_GET['singleout'] . '&' : '') . "$time\"></td></tr>\n" : "",
		'<tr>',
		'<td class=td-0><span class="green box">&nbsp;</span>空闲: ', bsize($mem_avail) . sprintf(" (%.1f%%)", $mem_avail * 100 / $mem_size), "</td>\n",
		'<td class=td-1><span class="green box">&nbsp;</span>命中: ', $hits . sprintf(" (%.1f%%)", $hits * 100 / ($hits + $misses)), "</td>\n",
		'</tr>',
		'<tr>',
		'<td class=td-0><span class="red box">&nbsp;</span>占用: ', bsize($mem_used) . sprintf(" (%.1f%%)", $mem_used * 100 / $mem_size), "</td>\n",
		'<td class=td-1><span class="red box">&nbsp;</span>失误: ', $misses . sprintf(" (%.1f%%)", $misses * 100 / ($hits + $misses)), "</td>\n";
		echo <<< EOB
	</tr>
	</tbody></table>
<br/>
	<div class="info"><h2><center>缓存详细信息</center></h2>
		<table cellspacing=0><tbody>
		<tr class=tr-0><td class=td-0>当前总项</td><td>$curr_items ($total_items)</td></tr>
		<tr class=tr-1><td class=td-0>命中</td><td>{$hits}</td></tr>
		<tr class=tr-0><td class=td-0>失误</td><td>{$misses}</td></tr>
		<tr class=tr-1><td class=td-0>总请求速率</td><td>$req_rate cache requests/second</td></tr>
		<tr class=tr-0><td class=td-0>命中速率</td><td>$hit_rate cache requests/second</td></tr>
		<tr class=tr-1><td class=td-0>失误速率</td><td>$miss_rate cache requests/second</td></tr>
		<tr class=tr-0><td class=td-0>理论速率</td><td>$set_rate cache requests/second</td></tr>
		</tbody></table>
		</div>

EOB;
		break;

	case 2: // variables

		$m = 0;
		$cacheItems = getCacheItems();
		$items = $cacheItems['items'];
		$totals = $cacheItems['counts'];
		$maxDump = MAX_ITEM_DUMP;
		foreach ($items as $server => $entries) {

			echo <<< EOB

			<div class="info"><table cellspacing=0><tbody>
			<tr><th colspan="2">$server</th></tr>
			<tr><th>Slab Id</th><th>Info</th></tr>
EOB;

			foreach ($entries as $slabId => $slab) {
				$dumpUrl = $PHP_SELF . '&op=2&server=' . (array_search($server, $MEMCACHE_SERVERS)) . '&dumpslab=' . $slabId;
				echo
				"<tr class=tr-$m>",
				"<td class=td-0><center>", '<a href="', $dumpUrl, '">', $slabId, '</a>', "</center></td>",
				"<td class=td-last><b>Item count:</b> ", $slab['number'], '<br/><b>Age:</b>', duration($time - $slab['age']), '<br/> <b>Evicted:</b>', ((isset($slab['evicted']) && $slab['evicted'] == 1) ? 'Yes' : 'No');
				if ((isset($_GET['dumpslab']) && $_GET['dumpslab'] == $slabId) && (isset($_GET['server']) && $_GET['server'] == array_search($server, $MEMCACHE_SERVERS))) {
					echo "<br/><b>Items: item</b><br/>";
					$items = dumpCacheSlab($server, $slabId, $slab['number']);
					// maybe someone likes to do a pagination here :)
					$i = 1;
					foreach ($items['ITEM'] as $itemKey => $itemInfo) {
						$itemInfo = trim($itemInfo, '[ ]');


						echo '<a href="', $PHP_SELF, '&op=4&server=', (array_search($server, $MEMCACHE_SERVERS)), '&key=', base64_encode($itemKey) . '">', $itemKey, '</a>';
						if ($i++ % 10 == 0) {
							echo '<br/>';
						} elseif ($i != $slab['number'] + 1) {
							echo ',';
						}
					}
				}

				echo "</td></tr>";
				$m = 1 - $m;
			}
			echo <<<EOB
			</tbody></table>
			</div><hr/>
EOB;
		}
		break;

	case 4: //item dump
		if (!isset($_GET['key']) || !isset($_GET['server'])) {
			echo "No key set!";
			break;
		}
		// I'm not doing anything to check the validity of the key string.
		// probably an exploit can be written to delete all the files in key=base64_encode("\n\r delete all").
		// somebody has to do a fix to this.
		$theKey = htmlentities(base64_decode($_GET['key']));

		$theserver = $MEMCACHE_SERVERS[(int) $_GET['server']];
		list($h, $p) = explode(':', $theserver);
		$r = sendMemcacheCommand($h, $p, 'get ' . $theKey);
		echo <<<EOB
        <div class="info"><table cellspacing=0><tbody>
			<tr><th>Server<th>Key</th><th>Value</th><th>Delete</th></tr>
EOB;
		echo "<tr><td class=td-0>", $theserver, "</td><td class=td-0>", $theKey,
		" <br/>flag:", $r['VALUE'][$theKey]['stat']['flag'],
		" <br/>Size:", bsize($r['VALUE'][$theKey]['stat']['size']),
		"</td><td>", chunk_split($r['VALUE'][$theKey]['value'], 40), "</td>",
		'<td><a href="', $PHP_SELF, '&op=5&server=', (int) $_GET['server'], '&key=', base64_encode($theKey), "\">Delete</a></td>", "</tr>";
		echo <<<EOB
			</tbody></table>
			</div><hr/>
EOB;
		break;

	case 5: // item delete
		if (!isset($_GET['key']) || !isset($_GET['server'])) {
			echo "No key set!";
			break;
		}
		$theKey = htmlentities(base64_decode($_GET['key']));
		$theserver = $MEMCACHE_SERVERS[(int) $_GET['server']];
		list($h, $p) = explode(':', $theserver);
		$r = sendMemcacheCommand($h, $p, 'delete ' . $theKey);
		echo 'Deleting ' . $theKey . ':' . $r;
		break;

	case 6: // flush server
		$theserver = $MEMCACHE_SERVERS[(int) $_GET['server']];
		$r = flushServer($theserver);
		echo 'Flush  ' . $theserver . ":" . $r;
		break;
}
echo getFooter();
